Comparison of preoxygenation using a tight facemask, humidified high-flow nasal oxygen and a standard nasal cannula - a volunteer, randomised, crossover study.

ABSTRACT:

Background

Preoxygenation before anaesthesia induction is routinely performed via a tight-fitting facemask or humidified high-flow nasal oxygen. We hypothesised that effective preoxygenation, assessed by end-tidal oxygen (EtO 2 ) levels, can also be performed via a standard nasal cannula.

Objective

This study compared the efficacy of preoxygenation between a traditional facemask, humidified high-flow nasal oxygen and a standard nasal cannula.

Design

A volunteer, randomised, crossover study.

Setting

Karolinska University Hospital, Stockholm. The study was conducted between 2 May and 31 May 2023.

Participants

Twenty cardiopulmonary healthy volunteers aged 25-65 years with a BMI <30.

Interventions

Preoxygenation using a traditional facemask, humidifi

SUBMITTER: Sjoblom A 

PROVIDER: S-EPMC11064899 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature